Recording device.



E. S. COLE.

RECORDING DEVICE.

APPLIGATI'ON FILED nu s, 1909.

Patented Feb. 11, 1913.

V/g//l/ Illlllllll EDWARD S. (JOLIE, OF NEVI YORK, N. Y.

RECORDING DEVICE.

Specification of Letters Patent.

Patented Feb. 11, 1913.

Application med May s, 1909. serial No. 494,751.

To all 'whom t may concer-nt Be it known that I, EDWARD S. Conn, acitizen of the United States, residing at New York, in the county of NewYork and State of Newl York, have invented a cer-- tain new and usefulImprovement. in Recording Devices, of which the Vfollowing is a full',clear, concise, and exact description, reference being had to theaccompanying drawings, forming a part of this speciication.

My invention relates to hydraulic record-- ers,-th at is to say, todevices for recording the velocity and static pressure of flowingstreams. y

The objects of the invention are to provide a simple, practical andinexpensive device of the class specified, to obtain accuracy of record,simplicity of operation, elliciency, durability, adaptability, and otherdesirable results as .will be hereinafter more particularly set forth. f

In the aceon'ipanyingdrawing Figure 1 represents a recording ldeviceembodying my invention, said device being shown partly in verticalysection and partly n diagram; Fig. 2 is a view of said recording devicepartially in pla-n and partially in horizontal section, with a part ofthe structure broken away for convenience ot' illustration.

Referring to the drawing, I have shown a pipe 1, Which may be a waterlnaiu or any other pipe or conduit carrying liquid whose velocity itisdes'ired to measure. This'` pipe, or conduit, 1, is provided withlitot tubes:

'2 and 3, the former facing down stream and the latter up stream. Thesetubes a'and 3 are extended to a metallic casing Llcontaining a flex1bl`ediaphragm lcarrynig a metal -disk 6. Y The tubes 2 and 3 conu'ininicalewith the interior of the casing '-i on oppositesides ofthe diaphragm 5,the tube 2 being below thediaphragni and the tube above it.' Levers 7,pivoted al S upon arms 9 carried: -by-ith'e casing 4, are arrangedlengthwise?aboveffthe diaphragm 5, and

`connectedlwitlijthe metal disk l, and there 't theinner ends of thelever A i .tor 1l, 1 1,exlend up lo the free endiftls'ia ring 12,supported by' a block 155i on th'e side of a 'case ll, mounted upon andcoinjiected with the upper chamber of the casing-4;# "'he llexibleronnoctors 1l 19 upon which is mounted a metal wheet 20. The wheel 2Otravels upon a hard rubber board .or block 21, forming a segmental track21, having a series of contacts 22. This track 21 is at an openingformed in the casing 14, so that while all the parts heretofore referredto are inside of the casings 4 and 14, the track 21 is outside of thesame, except its inner tace or surface, upon which are arranged thecont-acts 22. 22. the contacts QQ, 2Q, to magnets 24, arranged alongsidea recording cylinder 25, andarnis 2G are extended from the magnets Z4 tothe cylinder or drum 25, and provided with recording pencils or penscapable of forming a record upon a record sheet onthe cyr-'linder 25.The latter `is driven by clock-wor; 2Q.

ln operation, the velocity of the tlowing stream causes the .pressuretransmitted through the tube 3 to act upon the diaphragm 5, therebydepressing the samennd .causing the lever mechanism to dra-W down uponthe spring' 12 and turn `the wheel or pulley 15. This in turn causes thegear 16 to bring about a turning actionof the pulley 13`l which in turnswings the arm 19, and causes the wheel Q0 to travel 'over the contacts22. W'hen this is donc, circuits are closed` the magnets 'Q4 therebycausing the recording devices Q7 to act upon the record sheet on thedrum 2.3 to form a record.

The device herein shown is exemplary of a type of device which can bemuch modified and varied` and I am showing it in the precise form hereillustrated merely to illuslrate'its general principles of construction'and operation.

The general features of construction and operation of the device. permitaccuracy, sensitiveness and reliability to he obtained. There is nofriction with consequent climination of errors from that source; land notrouble from -zfii ages of temperature, photogfraplrv, etc.

The use of a parabolic gear-or like eleiurnl. in the train ofniechanisnn corrects the reading so as to compensate for decreasedmove-men* Conductors 23, 23 are extended fromy of the diaphragm prolrata as the 'velocity pressure increases. This same result can, ifdesired, be obtained by spacing the pencil magnets at decreasingdistances, as shown and claimed in my Pat` ent No. 880,720, in whichcase the parabolic element. will be omitted.

As a matter of further improvement, I desirably arrange to have thecasings t and 14 filled with water under pressure from the main.

It will be understood that changes and modifications may be made withoutdepartc ing from the. spirit of the invention.

lVhat I claim is 2- 1. In a device of the class described incombination, a casing, a diaphragm mounted in saidcasing, a pair ot'levers pivoted to said casing and also to 'said diaphragm, an armhavingr a hub pivoted Within said cas'- ing, a flexible member directlyconnecting said levers and said hub for rotating said lever, acorrecting member over which said flexible member passes, and a springfor tensiohing said flexible member.

2. In a deviceof the class described in combination, a casing having ahorizontal diaphragm therein, a lever pivotally connected to .saiddiaphragm and to said casing, an arm mounted within said casing torotate in a. horizontal plane, mechanism for transmitting the motion ofsaid lever to said arm for rotating said arm, a roller carried on saidarm, a ot electrical contacts mounted ina horizontal plane, over whichsaid rollce'l travels, anda recording device exterior to said casinggoverned Vby the movement-s of said arm androller,

3. In a device ofvthe class described in combination, a casing having adiaphragm chamber and a chamber connected with said diaphragm chamberprovided with an outstanding horizontal wall, a series of electriccontacts mounted upon said horizontal wall, a diaphragm mounted in saidcasing, a horizontal arm pivoted in said casing for cooperating' withsaid contacts, means for bending said diaphragm, and mechanism' fortransmit-ting the movements of said diaphragm to said arm.

4. A device ot the class specified cornpr'ising a casing containing adiaphragm, tubes communicating with lt'ne interior of said casing onopposite sides of said liaphragm, a train of mechanism actuated by saiddiaphragm, a. rolling contact-maker actuated by said train of mechanism,a series of electrical circuits arranged to be closed by said rollingcontact-maker, electro-magnets included in said circuits, recordingpen-- cileA actuated by said electro-magnets, and rotary drum `withclock-Work for holding record to be. acted upon by said pencils.

device o class specified comprising a I: u; containing a diaphragm, atrain of mtchanism actuatcl thereby, a` rolling 4electricalcircuit-closing device actuated b v said train of mechanisni, 'a;s,fies'of electrical circuits adapted t'e closed by said rolling device,elect-ro-lnagnets included in said circuits, recording devices actuatedby said magnets, and a record sheet-holding device arranged to cooperateivith said rc'- cording device.

6. A device of thc class specified comprising a casing containing adiaphragn'i. tubes` connected with .said casing', levers connected withthe diaphragm. a Aspring connected with said levers, :i gear connectedwith 'said spring, a drum carrying afsuinging arm connected with saidgear, a series ol' electrical contacts governed by said arm, elet'-tijo-inagnets in circuits containing said contacts, and recordingpencils actuated by said magnets. i

7.,A recording device comprising a casing containing a. flexiblediaphragm, and a train of mcchanisu'i actuated b y said diapliragm,including a spring and a parabolic gear or pulley 1G, a string passingover said pulley and attached to the 'diaphragm Whereby the pulleyisoperated by movement Vof said diaphragm, 'said mechanism also includinga swingingarm carrying a pulley traveling over a series ofcont-acts, aseries of electro-magnets whose circuits are closed at, the movement ofsaidpulley, a rotary drum, and recording devices associated with saiddrum and arranged to be operated by said electro-magnets. y

8. In a device of the character described the combination with aflexible member, means for communicating the static and velocitypressure to opposite sides of said member, and means for recording themovements or flexure of said member` 9. In a device of. the classdescribed, the combination with aflexible member, means for flexing thesame by variations in the velocity of a flowing-stream and means forrecording the movements or flexures of said member.

10. A device of the class described, comprising acasing containing adiaphragm, means for varying the pressure on opposite sides of saiddiaphragnu'a rollingcon-v tact maker actuated by the diaphragm, a

los

series of electrical connections controlled by and said arm.,

12. A device of the class described, eomf prising a casing, a diaphragm,a lever pivoted to said casing 'and connected to said diaphragm, an armand a string connected to said lever and said arm;

13. A device of the clam described, comprising a-casing, a diapbragm,.alever pivoted to said casing and connected to said diaphragm, an arm, astring connecting said lever and 4:aid arm, and means for tensioningsaid flexible member.

'14. A device of the class described, comprising a casing, a diaphragm.a lever pivoted to said cabing and connected to said diaphragm, an arm,a flexible member con nected to said lever and :aid arm, and acorrecting member coiperatmg with :umd flexible member for correctingthe variable movement of the diaphragm.

15. A device of the class described, com-- pi'isingl a caeing, adiaphragm, a lever pivoted tn said casing and connected to saiddiaphragm, an arm, a flexible member con neming said leven 1nd Said aand a correcting member coperating vwit said ilexible member, saidcorrecting member having a parabolic surface.

-In Witness whereof, I hereunto Subscribe my name this 8th day of AprilA D., 1909.

EDWARD* S. COLE.

Witnesses:

U, M. Xiamen, JnAx ELmofl'r.

